Which contactless payment system was first widely adopted by a major public transportation network, revolutionizing how passengers pay for transit?

The transportation industry has undergone significant transformations in how customers pay for services. From traditional cash payments to contactless systems and mobile apps, payment technologies have revolutionized the passenger experience while creating new business opportunities. This poll tests your knowledge about an influential payment innovation that changed urban transportation forever.

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London's Oyster Card (2003)
Hong Kong's Octopus Card (1997)
Tokyo's Suica Card (2001)
New York's MetroCard (1993)